1,5-Dichloro-2,3-dimethylbenzene CAS 70172-92-8
| CAS No. | 70172-92-8 |
| Molecular Formula | C8H8Cl2 |
| Molecular Weight | 175.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,5-Dichloro-2,3-dimethylbenzene (CAS 70172-92-8) is a high-purity analytical reference standard with the molecular formula C8H8Cl2 and a molecular weight of 175.06 g/mol.
Owing to chlorine substitution, an aromatic ring system, 1,5-Dichloro-2,3-dimethylbenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 175.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1,5-Dichloro-2,3-dimethylbenzene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H8Cl2 |
| Molecular Weight | 175.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 2,5-Dichloro-p-xylene (CAS 1124-05-6)
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- 1,2-Dichloro-3-ethylbenzene (CAS 54484-61-6)
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Recommended Standards
- 1-Chloro-2-(1-chloroethyl)benzene (CAS 20001-64-3)
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